[INFO] cloning repository https://github.com/r1cebank/rgb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r1cebank/rgb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr1cebank%2Frgb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr1cebank%2Frgb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88c1b58014afebd7a0b1ef6c973198cddf9c0617
[INFO] checking r1cebank/rgb against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr1cebank%2Frgb" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/r1cebank/rgb on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/r1cebank/rgb
[INFO] finished tweaking git repo https://github.com/r1cebank/rgb
[INFO] tweaked toml for git repo https://github.com/r1cebank/rgb written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/r1cebank/rgb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.19.4
[INFO] [stderr]   Downloaded syn v1.0.45
[INFO] [stderr]   Downloaded strum v0.19.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 040d343a7201efd1fdec8a4076840c50e6733cd6115b3c9544769f85661cb73a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "040d343a7201efd1fdec8a4076840c50e6733cd6115b3c9544769f85661cb73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "040d343a7201efd1fdec8a4076840c50e6733cd6115b3c9544769f85661cb73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "040d343a7201efd1fdec8a4076840c50e6733cd6115b3c9544769f85661cb73a", kill_on_drop: false }`
[INFO] [stdout] 040d343a7201efd1fdec8a4076840c50e6733cd6115b3c9544769f85661cb73a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1ec33b5fa6d9e0fad533fef1b6cf0347121ceb9148fd2505ee44d6d9632a42a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e1ec33b5fa6d9e0fad533fef1b6cf0347121ceb9148fd2505ee44d6d9632a42a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking strum v0.19.5
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling strum_macros v0.19.4
[INFO] [stderr]     Checking gba-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `boot_buffer`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let boot_buffer = matches.value_of("boot").map(|path| buffer_from_file(path));
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boot_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 Instruction::LD(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 Instruction::LDH(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 Instruction::ADD(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 Instruction::AND(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:58:34
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 Instruction::ADC(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 Instruction::SBC(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 Instruction::XOR(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 Instruction::OR(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:70:33
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 Instruction::CP(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 Instruction::SUB(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]   --> src/cpu/mod.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 Instruction::INC(target_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]   --> src/cpu/mod.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Instruction::DEC(target_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:82:33
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Instruction::JR(condition, address) => {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:82:44
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Instruction::JR(condition, address) => {
[INFO] [stdout]    |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:85:33
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 Instruction::JP(condition, address) => {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:85:44
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 Instruction::JP(condition, address) => {
[INFO] [stdout]    |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 Instruction::CALL(condition, address) => {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:88:46
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 Instruction::CALL(condition, address) => {
[INFO] [stdout]    |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 Instruction::RST(condition) => {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]   --> src/cpu/mod.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 Instruction::PUSH(register) => {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]   --> src/cpu/mod.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 Instruction::POP(register) => {
[INFO] [stdout]    |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]    --> src/cpu/mod.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 Instruction::RET(condition) => {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:146:41
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         Instruction::RL(target_type) => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:149:41
[INFO] [stdout]     |
[INFO] [stdout] 149 |                         Instruction::RR(target_type) => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:152:42
[INFO] [stdout]     |
[INFO] [stdout] 152 |                         Instruction::RLC(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:155:42
[INFO] [stdout]     |
[INFO] [stdout] 155 |                         Instruction::RRC(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         Instruction::SLA(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:161:42
[INFO] [stdout]     |
[INFO] [stdout] 161 |                         Instruction::SRA(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:164:42
[INFO] [stdout]     |
[INFO] [stdout] 164 |                         Instruction::SRL(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Instruction::SWAP(target_type) => {
[INFO] [stdout]     |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:170:42
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         Instruction::BIT(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:170:55
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         Instruction::BIT(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:173:42
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         Instruction::RES(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:173:55
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         Instruction::RES(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |                         Instruction::SET(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:176:55
[INFO] [stdout]     |
[INFO] [stdout] 176 |                         Instruction::SET(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `memory`
[INFO] [stdout]   --> src/cpu/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     memory: Rc<RefCell<dyn Memory>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pc`
[INFO] [stdout]   --> src/cpu/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pc: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sp`
[INFO] [stdout]   --> src/cpu/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     sp: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_halted`
[INFO] [stdout]   --> src/cpu/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     is_halted: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `interrupts_enabled`
[INFO] [stdout]   --> src/cpu/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     interrupts_enabled: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOOT_ROM_SIZE`
[INFO] [stdout]   --> src/memory/mod.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const BOOT_ROM_SIZE: usize = 0x100;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 43 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stdout] warning: unused variable: `boot_buffer`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let boot_buffer = matches.value_of("boot").map(|path| buffer_from_file(path));
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boot_buffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 Instruction::LD(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 Instruction::LDH(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 Instruction::ADD(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 Instruction::AND(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:58:34
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 Instruction::ADC(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 Instruction::SBC(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 Instruction::XOR(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 Instruction::OR(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:70:33
[INFO] [stdout]    |
[INFO] [stdout] 70 |                 Instruction::CP(operation_type) => {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operation_type`
[INFO] [stdout]   --> src/cpu/mod.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 Instruction::SUB(operation_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operation_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]   --> src/cpu/mod.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 Instruction::INC(target_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]   --> src/cpu/mod.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Instruction::DEC(target_type) => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:82:33
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Instruction::JR(condition, address) => {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:82:44
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 Instruction::JR(condition, address) => {
[INFO] [stdout]    |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:85:33
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 Instruction::JP(condition, address) => {
[INFO] [stdout]    |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:85:44
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 Instruction::JP(condition, address) => {
[INFO] [stdout]    |                                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:88:35
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 Instruction::CALL(condition, address) => {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/cpu/mod.rs:88:46
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 Instruction::CALL(condition, address) => {
[INFO] [stdout]    |                                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]   --> src/cpu/mod.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 Instruction::RST(condition) => {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]   --> src/cpu/mod.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 |                 Instruction::PUSH(register) => {
[INFO] [stdout]    |                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `register`
[INFO] [stdout]   --> src/cpu/mod.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 Instruction::POP(register) => {
[INFO] [stdout]    |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_register`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `condition`
[INFO] [stdout]    --> src/cpu/mod.rs:100:34
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 Instruction::RET(condition) => {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_condition`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:146:41
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         Instruction::RL(target_type) => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:149:41
[INFO] [stdout]     |
[INFO] [stdout] 149 |                         Instruction::RR(target_type) => {
[INFO] [stdout]     |                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:152:42
[INFO] [stdout]     |
[INFO] [stdout] 152 |                         Instruction::RLC(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:155:42
[INFO] [stdout]     |
[INFO] [stdout] 155 |                         Instruction::RRC(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         Instruction::SLA(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:161:42
[INFO] [stdout]     |
[INFO] [stdout] 161 |                         Instruction::SRA(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:164:42
[INFO] [stdout]     |
[INFO] [stdout] 164 |                         Instruction::SRL(target_type) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:167:43
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Instruction::SWAP(target_type) => {
[INFO] [stdout]     |                                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:170:42
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         Instruction::BIT(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:170:55
[INFO] [stdout]     |
[INFO] [stdout] 170 |                         Instruction::BIT(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:173:42
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         Instruction::RES(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:173:55
[INFO] [stdout]     |
[INFO] [stdout] 173 |                         Instruction::RES(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_type`
[INFO] [stdout]    --> src/cpu/mod.rs:176:42
[INFO] [stdout]     |
[INFO] [stdout] 176 |                         Instruction::SET(target_type, location) => {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_type`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]    --> src/cpu/mod.rs:176:55
[INFO] [stdout]     |
[INFO] [stdout] 176 |                         Instruction::SET(target_type, location) => {
[INFO] [stdout]     |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `memory`
[INFO] [stdout]   --> src/cpu/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     memory: Rc<RefCell<dyn Memory>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pc`
[INFO] [stdout]   --> src/cpu/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pc: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sp`
[INFO] [stdout]   --> src/cpu/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     sp: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `is_halted`
[INFO] [stdout]   --> src/cpu/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     is_halted: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `interrupts_enabled`
[INFO] [stdout]   --> src/cpu/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     interrupts_enabled: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOOT_ROM_SIZE`
[INFO] [stdout]   --> src/memory/mod.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const BOOT_ROM_SIZE: usize = 0x100;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 43 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.87s
[INFO] running `Command { std: "docker" "inspect" "e1ec33b5fa6d9e0fad533fef1b6cf0347121ceb9148fd2505ee44d6d9632a42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ec33b5fa6d9e0fad533fef1b6cf0347121ceb9148fd2505ee44d6d9632a42a", kill_on_drop: false }`
[INFO] [stdout] e1ec33b5fa6d9e0fad533fef1b6cf0347121ceb9148fd2505ee44d6d9632a42a